#263F8A#263F8A

#263F8A is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.129 H 266.5°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#263F8A
RGB	rgb(38, 63, 138)
HSL	hsl(225, 57%, 35%)
HSV	hsv(225, 72%, 54%)
CMYK	cmyk(72.5%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(28.91, 17.64, -44.69)
CIE-LCH	lch(28.91, 48.04, 291.54°)
OKLab	oklab(39.35% -0.0077 -0.1285)
OKLCH	oklch(39.35% 0.129 266.5)
XYZ	xyz(7.1627, 5.8013, 24.7821)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263F8A #8A7126

analogous

#26718A #263F8A #3F268A

triadic

#263F8A #8A263F #3F8A26

tetradic

#263F8A #8A2671 #8A7126 #268A3F

square

#263F8A #8A2671 #8A7126 #268A3F

split-complementary

#263F8A #8A3F26 #718A26

monochromatic

#0C132A #19295A #263F8A #3355BA #5977D1

Accessibility & contrast

On white

9.72

#263F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#263F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263F8A

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263F8A	#FFFFFF	#000000	##FFFFFF
##263F8A	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B498D

Deuteranopia (green-blind)

#004088

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #263f8a;
/* rgb */ color: rgb(38, 63, 138);
/* oklch */ color: oklch(39.4% 0.129 266.5);

Tailwind

colors: {
  custom: {
    50: '#6e73ad',
    500: '#263f8a',
    950: '#000000',
  },
}

SCSS

$custom: #263f8a;
$custom-light: #6e73ad;
$custom-dark: #000000;

JSON

{
  "hex": "#263f8a",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 225,
    "s": 56.818,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39354,
    "c": 0.12876,
    "h": 266.5
  },
  "luminance": 0.05802
}

Semantic roles & 50–950 ramp

primary

#263F8A

secondary

#B69E56

accent

#BA48E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #263F8A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →